Machine for squaring spoke stock



April 3, 1928.

K. M. MATHISEN MACHINE FOR SQUARING SPOKE STOCK 4 Sheets-Sheet 1 Filed Jan. 6. 1926 O 6% mm N www mm R April 3, 1928. 1,664,861

\ K. M. MATHISEN V MACHINE FOR SQUARING SPOKE STOCK Filed Jan. 6. 1926 4 Sheet s-Sheet 2 Aprii 3, 1928.

K. M. MATHISEN MACHINE FOR QQUARING SPOKE STOCK Filed Jan. 6, 1926 4 sheets-sheet 3 April 3, 1928. 1,664,861

' K. M. MATHISEN MACHINE FOR SQUARING SPOKE STOCK Filed Jan. 6. 1926 4 ShQQtS-ShBB 4 I Q- N Q Q g 6 x 9 m m a s Q I L F- l & L 3 1% I -i OQ i 1 Patented Apr. 3, 1928.

KRISTIAN M. MATH-ISEN, OF MENOMINEE, MICHIGAN, ASSIGNOR TO HEYWOODJVAKE- FIELD COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHU- SETTS.

MACHINE FOR SQUARING SYOKE. STOCK.

Application filed January 6, 1926.. SeriabNo. 79,529.

Tl invention relates to improvements in machines for-squaring spoke stock and it consists of the matters hereinafterdescribed and more particularly pointed out 1n the appended claims.

The primary object of the invention is to provide a. simple and eiiicient machine adapted to receive billets of a predetermined length of any cross sectional shape of hmiiied diameter. and to prepare them forfuture operations by other machines, by reducing them all to the same desired cross section and-diameter. v

A i urther object of the invention is to provide. such a machinethat is automatic in operation and requires no skilled operator in attendance norno watching or observa-.

tion further than to see that there is a suflicient amount of billets or stock ready for feeding to the machine.

Still another object of the invention 1s to provide a machine which includes immovable cutting dies, through which .a cont-muousprocession of end to end disposed billets are pushed by a reciprocating member, at

each reciprocation of which a spoke blank of the desired cross section is discharged from one end of the. procession ready for a v spoke lathe and a new billet is inserted in place thereof at the other end of the procession from a magazine containing a stack of such billets.

These objects of the invention as well as others, together with the'many advantages thereof will more fullyappear as I proceed with my specification.

In the drawings:

Fig. 1 is a view in side elevatlon of one form of machine embodying. my invention.

Fig. 2 is a top plan view of the same.

3 is'a top plan view on, an enlarged scale of that part ofthe machine shown at the left hand end of Fig. 2.

Fig. 4. is a longitudinal. vertical sectional view through the same as taken on the line Fig. 5 isa view in sideclevation of that part of the machine shown at the left hand end of Fig. 1. but as viewed from. the opposite side thereof.

Fig. 6 is atransverse vertical sectional view through the magazine as taken on the line 6+6 of Fig. 4.

Figs.- 7 and 8 are transverse vertical sectional views as taken on the lines 77 .and 8-8 respectively of Fig. 4.

In general my improved a strong and rigid base upon one end of which is mounted a support for a magazine for the billets to be operated upon and one or more cutting dies and on the otherfend of said base is located the main driving shaft, which not only actuates a reciprocating member adapt-ed to remove a billet from the magazine and push it through the cutting dies but also actuates a gate which controls the admission of the billets, one at eachreciprocation of said member, into said magazine from a chute leading from a billet hopper.

Referring now in detailto thatv embodiment of my invention illustrated in the accon'ipanyin g drawings, 1 indicates thehorizontally disposed base of my improved ma? chine upon which all of the operating parts are mounted. As shown herein said base is rectangular in plan and is of alength greater than its height or width. Rising from one end of said base along the median plane thereofis an open top support 2 of semicylindrical cross section, said support including circular head plates 3 and 4: re

spectively at the front and rear ends'thereof. l Vithin said: supportat the front end thereof is located a bearing block 5 having a semi-cylindrical, longitudinally extending recess 6 in line with a centrally disposed opening 7 in the front head plate '3. In the rear .head plate 4: is a bearing bushing Sproviding a slidingguiding bearing fora reciprocating member or rod like plunger 9.

Rising from the rearend of the base are laterally spaced arms or standards 10 which may or may not be made integral with a horizontally disposed yoke 11. 12 indicates the main drive shaft which isjournalled near its ends upon the yoke vertically above the standards 10. The yoke llincludes laterally spaced front and rear sidemembersli; and 13" respectively, connected together at their front ends by an end plate 14 which is fixed;

to the rear end plate 4 of the support 2. The rear ends of said. side members of the yoke areconnected together by a curved end member 15. The opposed inner surface of said yoke sidemeinbers 13 and 13 are formed to provide guides fora longitudinally-slidable, cross headh16; to which. the rearend machine includes of the plunger 9 is operatively connected. On the drive shaft 12 between the side members of the yoke 11 is formed a crank 17 and a rod 18 operatively connects said crank with the usual wrist pin carried by the cross head 16. On the ends of said shaft are secured the driving pulley 19 and balance wheel 19 respectively-and adjacent the balance wheel outside of the rear side member 13 of the yoke -l1, an eccentric 20 is fixed to said shaft, the purpose of said eccentric appearing later.

Spaced a suitable distance outwardly from the front head plate 3 of the support 2 is a backing plate 21. having a discharge opening 22 therein coaxial with the opening 7 in said front end head plate. The backing plate is suitably supported by arcuately spaced, longitudinally extending tie or tension rods 23, the topmost ones of which are the longer and extend through the front head plate to be anchored in the rear head plate, while the other of said rods, which are shorter, are anchored in the front head plate as shown. Thus said plate is supported in a manner so that it amply resists all end thrust imposed upon it.

Between the front end plate of the support 2 and said backing plate is located one or more cutter holder members and a guide head therefor. As best shown in Fig. 4, there are two longitudinally spaced cutter holder members 24 and 25 respectively and a lone guide head 26, with the cutter holder member 24: in engagement with the backing plate and with the guide head in engagement with the front end head plate 3 of the support 2,'the cutter head member 25 being intermediate the said member 24 and guide head 26. i

Within the intermediate, cutter head holder is mounted a cutter member 25 which is of a cross section corresponding to the desired cross section to be given the spoke stock or blank and with its cutting edges facing the head plate 3. Said cutter member is locked in place by a tubular locking nut 27 which in turn is backed up by an annular plate 28 that constitutes a chip breaker. l/Vithin the endmost'cutter holder member 24 is'mounted a cutter member 241-" corresponding to the cross section of the finished spoke blank, the said cutter member being the finishing cutting member and slightly smaller than the cutter member 25 which imparts an initial cut to the billet. \Vith the provision of the cutter members, the billet as it is pushed through the cutter member 25 receives its initial or preliminary cutting by the taking off of relatively small chips or shavings and when it is pushed through the other cutter member 24 other chips and shavings are removed to bring the billet to the desired cross section in the squared or finished spoke blank and in this condition'the blank is discharged through the opening 22 in the end plate 21, the chips or shavings falling from the cutter head, which is of an open formation for this purpose. Just forward of the cutter member 25 and engagedwith the guide head 26 is an annular plate 26 which constitutes the chip breaker associated with this cutter member 25. Said chip breaker plate has a circular opening 26 therein (see Fig. 7) while the chip breaker plate 28 has a square hole 28 therein to receive'the billet after the same has been pushed through the first cutter member 25*. Both of said chip breakers compress that part of the billet that is bein cut bv the cutter members. This compressing action, because of said breakers being positioned just in front of the associated cutter members, makes said members shear the wood of the billet instead of allowing the chips to be torn along the line of least resist ance which. of course, is with the gram of the wood. Thus the action of the cutter members and their associated chip breaker plates may be likened to that of the ordinary wood workers hand plane. It is apparent that only one cutter member maybe actively employed, depending of course upon the condition of the billets or stock fed thereto because some of the billetsmay be of such size as to require the passage thereof through onlyone cutter member; Again it might be advisable to employ more than the two cutter members described herein as is apparent 7 because the billets are made up from scrap pieces and mill ends which heretofore have "been considered as waste only.

T he guide head 26 has a centrally'disposed opening 26 in line with the openings in the front end headplate of the support 2 andin the cutter members respectively. Associated with the guide plate is a plurality of rag dially. disposed guide fingers 26 the inner ends of which extend into the opening 26* to center the billet with respect to the cutter members, a ring 29 mounted on-the guide head, supporting the fingers in theproper position. Springs 29 operatively connect said ring 29 with the rods 23 to yieldingly hold said ring in operative position with respect to saidfingers.

In the bearing block 5 are provided upstanding, laterally spaced front and rear plates 3030 which form an upward continuation of the recess 6 in said block to provide the side walls of a billet magazine 6" the front end wall of which is formed by the head plate 3 and the rear end wall of which is formed by a transversely extending plate 31. The magazine 6 thus formed will hold a stack of. billets 32 as best shown in Fig. .6. The billets are fed by gravity to said magazine'from a hopper (not shown) bv an inclined chute 33 as shown in Fig. 1. To the rear of the magazine and mounted on the support 2 is a slide plate supporting member 34' and adjacent the same and mounted on the support near the rear end wall of the magazine is a bracket plate 35. On the supporting member 34 are longitudinally spaced rails 36 providing a sliding guiding bearing for a reciprocable plate 37. Lateral reciprocating movement is impart ed to said plate by an arm 38 fixed to the top end of an upright rock shaft 39 journalled in a post 40 on the bracket plate 35. The free end of said arm has a pin and slot connection 41 with .the pla-te'37, so that when the shaft 39 is rocked, a reciprocating movement is imparted to said'plate '37. To the bottom end of the shaft 39 which extends below the bracket plate 35, is fixed an arm 38" having a pin and slot connection 42 with one endof a longitudinally reciprocating rod 43. Said rod has sliding guiding movement in a bearing 44 projecting laterally from the rear side member 13' of the yoke 11. The other end of said rod 43 is operatively connected to one end of a rod 45 the other end of which carries .an eccentric 20 on the driving shaft. A spring 47, fixed at one end to the arm 38 and at the other end to the support 2 assists'in the movement of said arm in one direction.

. On the rear edge of the supporting memher 34 is fixed an upright post 34? and to the top end thereof is pivoted one end of a transversely extending lever 48. The other end ofesaid lever projects into the longitudinal plane of the billet magazine 6, and carried by said end of said arm is a depending plate like gate'member 49 which is capable of a movement into and out of the magazine, to the rear of. the end of the billet chute. The reciprocating plate 37 carries a standard 50 and in the top end thereof is journallcd a flanged roller 51 which engages the lever 48 at a point-between its ends. In

azine.

the reciprocation of the plate v3'7 the lever 48 through the roller 51 is caused to have a vertical swinging movement so that the gate 49 is swung away from and toward the mag- In the upward swinging movement of the lever, the gate clears the rear end of the billet chute 33 so that a billet is delivered therefrom into the top endof the magazine and in the downward swinging movement of the gate said gate will not only close off the chute against delivery of another billet therefrom but will urge thebillet just delivered, downwardly. V

In the front wall 30 of the magazine is a longitudinally extending opening 30 through which one end of a shield plate or shutter 52 projects to extend into the magazine, the other end thereof being pivot-ally mounted on the front and topmost one of the rods 23. A spring 53 fixedat one end to said rod so engages at its other end with said shutter as to normally urge its bottom end through the opening'30 toextend into the magazine in aplane above the bottommost billet therein. Said shutter normally supports the stack of billetsand when the member 48 .moves downwardly to engage said stack of billets, said shutter yields outwardly to permit that billetengaged upon it to pass and be presented in a position in the groove 6'to be engaged by the plunger 9 in its next outward movement. Assoon said billet passes the shutter said shutter moves under the action of the spring 53 to reenter the magazine and engage-the next billet and so on. The shutter therefor not only serves the purpose of feeding one and only one billet at a time into position in front of the plunger when retracted but makes it impossible for the billet to assume any but a horizontal position, thus eliminating the possibility of the billet becoming jammed in'any way by the plunger. Thus each time a billet is pushed or ejected from the bottom of the stack toward the cutter a new billet is delivered onto the top-of the stack in the magazine which is always maintained to its full capacity. I

It is apparent from the above set forth description that the billets are pushed in an end to end arrangement through the cutting members and as one finished spoke blank is discharged another billetenters the magazine.

My improved machine hascmany advantages. It makes use of pieces of factory stock heretofore waste, all that is necessary.

to do with the same is to cut it to proper length before use. It operates on stock of different cross sectional shapes within limited cross sectional areas and produces a spoke blank of uniform cross section for the spoke lathe which uniform cross section is difficult to maintain in blanks produced on a sticker as is now the practice. .The machine is automaticin operation, is simple in construction and el'lici'ent in operation for its intended purpose.

Vhile in describing my invention, I have referred to many details of construction as well as form and arrangement of the parts thereof, the same is by way of illustration only so that I do not wish to limit myself thereto exceptas may be pointed out in the appended claims.

"1- claim as my invention:

1. A machine of the kind. described embodying therein, a support, cutter members mounted on the support and arranged to produce the desired cross sectional shape to the blank. a magazine mounted on the supportto receive a stack of billets with the.

bottommost billet in substantial alignment with said cutter members, a drive shaft, a reciprocating member opcratively connected to said drive shaft and adapted to engage the bottommost billet in the stack to pro ect it therefrom and to push it toward said cuttel.- mci'nbers, means for feeding billets to the magazine, a gate associated with said magazine for controlling the admission of billets thereto from said feeding means and'means also actuated. from the drive shaft for operating said gate.

2, A machine'of the kind described embodying therein, a support, cutter members mounted on the support and arranged to produce the desired cross sectional shapeto the blank, a magazine mounted on the support, to receive a stack of billets with the bottonnnost .bi'llet insubstantial alignment with said cutter members, a drive shaft, a reciprocating member operativcly connected to said drive shaft and adapted to engage the bottommost billet in the stack to project it therefron'i and to push it toward said cutter members, means for feeding billets to the magazine,a laterally reciprocable member mounted on the support, a lever pivoted to a fixed part on the support and having an end overhanging said magazine, a gate pivoted to said end of the lever and means on said reciprocable member and operatively engaged with the lever for raising and lowering said gate .to control-the feed of billets to the magazine.

3. A machine of the kind described embodying therein, a support, cutter members mounted on the support and arranged to produce the desired cross sectional shape to the blank, a magazine mounted on the support to receive a stack of billets with the bottommost billet in substantial alignment with said cutter members, a drive shaft, a reciprocating member'operatively connected to said drive shaft and adapted to engage the bottommost billet in the stack to project it therefrom and to push it toward said cutter members, means for feeding billets to the magazine, a laterally reciprocable member mounted on the support, a lever pivoted to a fixed part on the support and having an end overhanging said magazine, a gate pivoted to said end of the lever, means on saidreciprocable member and operatively engaged with the lever for raising and lowering said gate to control the feed of billets to said magazine and means actuated from the drive shaft for imparting movement to said reciprocable member. i

at. A machine of the kind described embodying therein, a base, a support on-one end thereof and a crank shaft on the other end thereof, cutter members mounted on one end of said support, a billet magazine on said support, a reciprocating member in sub stantial alignment with said cutter member and having sliding bearing in said support, means operatively connecting said reciprocals ing member with the crank shaft, a laterally reciprocable plate mounted on said support to the rear of the magazine, means for feed ing billets to the magazine, a gate member,

for controlling the admission of billets to the magazine and actuated in timed relation to said reciprocating member by said r'e'cip rocating plateand means actuated by said crank shaft for reciprocating said plate. I

5. A machine of the kind described embodying therein a base, an open top support upon onecnd thereof and including an apertured head "plate,"a bearingflblock in said support having an opening therein in line with the aperture in said head plate, means associated withfsaid support and block providing an upright billet magazine, an apertured backing plate spaced from said head, cutter members disposed between said head and backing plates, a reciprocating plunger associated with said support and block p'roviding an upright billet magazine, an apertured backing plate spaced from said head, cuttermembers disposed between said head and backing plates, meansconnecting said plates to draw them together to securely hold said cutter members 1n position, a reciproeating plunger having sliding guiding hearing in said bearing block, a transverse drive shaft journalled on the other end of said base and means connecting said driveshaft and plunger for reciprocating the same.

7. A machine of the kind described embodying therein, a base, an open top sup port upon one end thereof, and including an apertured head plate, a bearing block in said support having an opening in line with the aperture in said head plate, meansuassociated with said support and block providing an upright-billet magazine, a cutter member supported from said head plate, a transverse drive shaft on the other end of said base, a reciprocating member journalled at one end for sliding bearing in said bearing block and operat'ively connected at its other end to the drive shaft, means for feeding billets to said magazine, a member on said support for controlling the admission of billets to said magazine from said feeding means and means also actuated from the drive shaft for operating said controlling member. I

8. Ainachine of the kind described embodying therein, a base, an open top support upon one end thereof, and including an apertured head plate, a bearing block in said support having an opening in line with the aperture in said-head plate, means as end to the drive shaft,means for sociated with said support and block providing an upright billet magazine, a cutter member supported from said plate, a trans- Verse drive shaft on the other end of said base, a reciprocatin member journalled at one end for sliding bearing in said bearing block and operatively connected at its other "ceding billets to said, magazine, a laterally reciprocable member mounted on said support, a lever pivoted to a fixed part of said support and having an end overhanging said magazine, a member carried by said end of said lever, and means on said reciprocable member operatively engaged with the lever for raising and lowering said member on said lever to control the feeding of billets to said magazine.

9. A machine of the kind described embodying therein a base, an open top support upon one end thereof, and including an apertured head plate, a bearing block in said support having an opening in line with the aperture in said head plate, means associated with said support and block providing an upright magazine, a cutter member supported from said plate, a transverse drive shaft on the other end'of said base, a reciprocating member journalled at one end for sliding bearing in said bearing block and operatively connected at its other end to the drive shaft, means for feeding billets to said magazine, a laterally reciprocable member mounted on said support, a lever pivoted to a fixed part of said support and having an end overhanging said magazine, a member carried by said end of said lever, means on said reciprocable member operatively engaged with'the lever for raising and lowering said member on said lever to control the feeding of billets to said magazine and means including an eccentric actuated from said drive shaft for imparting movement to said reciprocable member.

In testimony whereof, I have hereunto set my hand, this 31st day of December, 1925.

KRISTIAN M. MATHISEN. 

